The Independent Septic Tank and Sewage Treatment website for lifestyle blocks, subdivisions, schools, Marae, camp grounds, small and coastal sections.Independent Council tests showed over 65% of domestic treatment systems tested performed no better than a filtered septic tank. A sewage system nightmare can be avoided by obtaining independent advice before buying a system.Covering all on NZ, and well known in the Wellington, Kapiti Coast, Manawatu, Hawkes Bay, Taranaki, Wairarapa, Waikato & Bay of Plenty regions.Call Dave Miller Environmental Engineer first to save you time and money.